Drill-sharpener



1. B. GORMAN AND J. A. FERTIG.

DRILL SHARPENER.

APPLicATloN man DEc.6,1919.

1,389,501. Patentemug. 30,1921.

4 SHEETS-SHEET 1 WITNESS- JT-FeZ/zf'y INVENTORS N A TT ORNE Y.

1. B. GORMAN AND I'. A. FERTIG.

DRILL SHARPENER.

IIPPIIcA''IoN FILED 1350.6, 191s. 1,389 1501` Patented A ug. 30, 1921.

4 SHl'ETS--SHFETA 2.

' ATTORNEY.

J.- B. GORMAN AND-J. A.. FERTIG.

DRILL SHARPENER.

APPLICATION FILED DEC. e. IsIa.

Patented Aug. .30, 1921.

4 SHEETS-SHEET 3.

IN VENTORS WITNESS:

J. B. GORMAN AND1. A. FERUG.

DRILL SHARPENEH.

APPLICATION FILED 0150.6, 1919.

Patented Aug. 30, 1

4 SHEETS-SHEET n.. W. um.

INI/EDITORS WITNESS:

ATTORNEY.

UNITED STATES PATENT OFFICE.

JOHN IB. GORMAN LAN D JAMES A. FERTIG, OF WENTWORTH, MISSOURI.

:DRILL-SHARPENER.

Specification of Letters Patent.

Patented Aug. 30, 1921.

Application filed December 6, 1919. Serial No. 343,060.

To all 'whom t may concern.' I

Be it known that we, JOHN B. GoRMnN and JAMES A. FERTIG, citizens of theUnited States, residing at Wentworth, in the county of Newton and Stateof Missouri, have invented new and useful Improvements inDrill-Sharpeners, of which the following is a specification.

This invention relates to improvements in bit sharpening devices wherethe bit is sharpened by a power hammer.

One of the objects of the invention is to provide an adjustable framefor supporting the power hammer so that said hammer may be swung intodifferent positions so that the hammer may engage the bit at differentangles and thus properly shape the bit.

. nother object of the invention is to provide an anvil and adjustablesupporting means for the threaded end of the bit with means for holdingsaid support at any desired position relative to the anvil so that bitsof different lengths may be sharpened.

The invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, t0 behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claims.

In describing our invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a side view of the invention.

Fig. 2 is an end view.

Fig. 3 is a plan view.

Fig. 4 is a section on line 4 4 of Fig. 3.

Fig. 5 is a section on line 5-5 of Fig. '1.

Figs. 6, 7 and 8 are detail views of the cradle for the hammer.

Fig. 9 is a view of the anvil.

In these views, 1 indicates the base upon which the anvil 2 is secured.A block 3 '1s slidably mounted on said base and is connected with a partof the anvil by the chain 4 and the bail 5. In this way the block may beplaced any desired distance from the anvil. The base also supports asegment 6 at one side thereof.

A frame 7 has its lower end secured to the anvil and its upper end ispivotally connected to the cradle carrying frame 8 by the rod 9. Thiscradle frame 8 is provided with the depending pieces 10 which have theirends overlapping and provided with 'screw threaded holes which areengaged by a screw threadedv shaft 11 carried by a bracket 12 secured toone of the upright pieces of the frame 7. This shaft 11 is provided witha crank handle 13. In this way by operating the shaft 11 by means of itscrank handle the cradle frame may be adjusted on the frame 7. The frame7 has secured thereto at one side the slides 14 which engage the segment6 so that by moving said slides on the segment the frame 7 may beadjusted from a vertical to an inclined position, the lower end of saidframe being pivotally connected with the anvil by means of the plates 15and the bolts 16. In order to lock the frame in adjusted position one ofthe clamps 14 is provided with aclamping screw 17 which has a crankhandle. The lower end ofthe frame 7 is provided with an extension 18which projects below the anvil and is connected with the coiled spring19. The other end 0f the spring is connected with a part of the basebythe bolt 20 and nut 21. This spring acts to balance the movable partsof the device.

The cradle 22 is provided with the recess and gui deways 23 to receivethe hammer 24 which may be of any desired construction. This cradle isprovided with a corrugated boss 25, the corrugations of which areengaged by the corrugated plate 2G which carries the block 27. Thisblock is provided with a screw threaded hole 28 and the clamping plate29 is bolted to this block. The plate 26 and block 27 are connected tothe cradle by means of the bolt 30 and the hand wheel 31 engaging thebolt. The block 27 is slidably mounted in a guideway 32 formed in thecradle frame 8 and the plate 29 holds this block in said guideway. Thecradle is laterally adjusted in said cradle frame by means of the screwshaft 33 carried by the cradle frame and engaging the opening 28 in theblock. This shaft is provided with a khandle 34. It will thus be seenthat the cradle may be adjusted on the block 27 and plate 26 by means ofthe bolt 30 and the wheel 31 and the cradle can also be adjustedlaterally in the cradle frame by means of the shaft 33 and its 'handle34.

The anvil is provided with a recess 35 in its front side for the purposeof protecting the point of the bit when the same is turned on edge.

Then a bit, such as shown at A, is to be sharpened its screw threadedend is placed in a recess in the block 3 and its point placed on theanvil. The block is adjusted relative to the anvil to properly positionthe bit. The frame 7 is then adjusted on the segment, and if necessarythe cradle frame is adjusted in the main frame by means of the screwthreaded shaft 11 and its handle 13. The cradle is then moved laterallyby means of the screw threaded shaft 33 and its handle 34 to properlyposition the hammer over the bit. rEhe position or' the hammer may alsobe adjusted by moving the cradle on the bolt 30 after the wheel 31 isreleased. By these several adjustments it will be Vseen that the hammermay be moved into any desired position relative to the point to properlyshape said point.

In order to st-eady the bit we may provide a holder which consists of asubstantially U-shaped member 36 bolted alongside the anvil and havingits cross piece provided with a plurality of holes to adjustably receivea pair of L-shaped rods 37 which are adapted to grip the bit betweenthem.

lt is thought from the foregoing description that the advantages andnovel features of our invention will be readily apparent.

le desire it to be understood that we may make changes in theconstruction and in the combination and arrangement of the severalparts, provided that such changes fall within the scope of the appendedclaims.

That we claim is: l. A device of the class described comprising a base,an anvil carried thereby, a segment carried by the base, a main framehaving its lower part pivoted to the anvil, means for adjustablyconnecting said main frame with the segmentLa cradle frame pivotallyconnected with the main frame, a cradle for the hammer, and means foradjusting the same laterally in the cradle frame.

2. A device of the class described comprising a base, an anvil carriedthereby, a main frame, means for adjustably supporting the same from thebase, a cradle frame, a cradle carried thereby, means for adjusting; thesame laterally in said cradle frame and means for pivotally adjustingthe cradle.

3. A device of the class described comprising a base, an anvil carriedthereby, a segment on the base, a main frame having its lower partpivoted to the anvil, means for adjustably connecting` the main framewith the segment, spring means for counter balancing the main frame, acradle frame pivotally connected with the main frame., manually operatedmeans for adjusting the cradle frame in the main frame, a cradle for thehammer and means for adjusting the same in the cradle frame.

In testimony whereof we aiiix our signatures.

JOHN B. GORMAN. JAMES A. FERTIG

